Jamis Sputnik vs. Fuji Track

Singlespeed & Fixed Gear"I still feel that variable gears are only for people over forty-five.
Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

Am looking for my first fixed-gear bike and am considering the Jamis Sputnik vs. the Fuji Track. Will mostly be using the bike for fitness, but love the idea of one day taking it to a track. Any thoughts on these two bikes and how they compare?

I have a coworker who has a sputnik. He likes it. He mainly uses it to commute - 7 miles each way or so. He graduated to it from a mid 80's conversion. If you have a specific question I could ask him.......